Coal-hoist



(No Model.) 2 SheetsShe'et 1.

J. OLSON.

GOAL HOIST.

No. 411,166.. Patented Sept. 17, 1889.

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(No Model.) 2 Sheets-Sheet 2.

J. OLSON.

GOALHOIST. V v I N0.411.166. 1 PatentedSept.17, 1889.

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UNITED STATES PATE T OFFICE.

JACOB OLSON, OF MUCHAOHINOCK, ASSIGNOR OF ONE-HALF TO JOHN E.

BUXTON, on OSKALOOSA, IOWA.

To all whom it may concern:

Be it known that I, JACOB OLSON, a citizen of the United States,residing at Muchachinock, in the county of Mahaska and State of Iowa,have invented certain new and usefullmprovements in Coal-Hoists and I dodeclare the following to be afull, clear, and exact description of theinvention, such as will enable others skilled in the art to which itappertains to make and use the same, reference being had to theaccompanying drawings, and to theletters and figures of reference markedthereon, which form a part of this specification.

This invention relates to coal-hoists, and has for its object theprovision of novel devices for locking the cage to the hoisting-frameand for automatically unlocking and tipping the same, and to providesimple means for securing the car to the cage, which can be convenientlyoperated to release the car when required.

The improvement consists of the peculiar construction and combination ofthe parts, which will be hereinafter more fully described and claimed,and which are shown in the annexed drawings, in which- Figure 1 is aside view, parts being broken away, showing the hoisting-frame at thetop of the shaft and the relative position of the parts just prior tothe tipping of the cage and the unlocking of the same from thehoistingframe; Fig. 2, a view similar to Fig. 1, showing the cagetipped; Fig. 3,aplan view of the hoisting-frame, showing the relativeposition of the guide-posts therefor; Fig. 4, a side view of the cam orguide plate.

The coal-chute R is suitably supported at its upper end preferably bythe posts D. The hoisting-frame F is guided in its movements by theguide-posts E, and is composed of the side frames F F and the upper andlower frames 0 and 0, each of which is composed of the cross-beams NVand the end plates w, which unite the beams W at their ends, each frameF being composed of a plate f and angle-irons f ,which are bolted to thesaid plate near each edge thereof, and which embrace the sides of theposts E, as shown most clearly in Fig. 3. The cage is placed on thesupport S, which is journaled or pivoted to the lower frame 0 of thehoisting-frame to one side of COAL-HOIST.

SPECIFICATION forming part of Letters Patent No. 411,166, datedSeptember 17, 1889.

Application filed March 22, 1889.

Serial No. 304,263. (No model.)

a vertical plane passing centrally through the shaft, and is composed ofthe platform Aand the side rails I, which are curved and work throughkeepers T, fastened to the side frame or bars F. The stop U, secured tothe side of the rails I, strikes against the keeper T and limits themovement of the cage in one direction, and the pawl J, having the detentj, holds the cage from movement in the opposite direction, the detent jengaging with one of a series of notches 'i in the upper edge of therail. The spring K, secured at its upper end to the side frame F, hasits free or lower end projected within the path of the stop j on thepawl J to press on the same and force the detent j in engagement withthe notches 'i in the rail 1. The front end j of the pawl is curved andextends within the path of the trip-bar L, which is fixed in the shaft.The guide P flares at its lower end and curves toward the chute R at itsupper end, and is designed to engage with a roller 19 on the side of thecage and effect a tipping of the latter. This guide is formed on theplate Q, as shown most clearly in Fig. 4. If required, there will be aroller 19 and guide P for each side of the cage. The locking-levers M,pivoted between their ends,

.embrace the stop-bar N on the under side of the car X between theirends and hold the car in position on the cage. The foot-levers O areprovided as a convenience to operate thelocking-levers and release themfrom the stop bar N.

When the car is run on the cage, it is locked thereon by levers M andthe frame is hoisted in the usual manner. When the car approaches thetop of the shaft or the top of the chute, the pawl J engages with thetrip-barL and is released from the rail, and at the same time the roller1), engaging with the curved portion of the guide P, tips the cage, thecoal being dumped in the usual way. By having the support pivoted to oneside of a perpendicular line passing through the center of the cage thelatter, when tipped, projects over or overlaps the mouth of thecoal-chute, as clearly shown in Fig. 2. The support S rests on therubber block H, the latter being provided to obviate noise and jar.

The end-gate B of the car X is removed when the cage is tippedby thehook B engaging with the stop 1) thereof in the usual way, and isprovided with an arm B at each end, which has a pivotal connection withthe car, as shown.

The posts D D are the ordinary posts comprising the elevator-shaft 05 acoal-hoist.

The car X, of well-known construction, is mounted on the wheels '12 inthe usual way.

Having thus described my invention, what I claim, and desire to secureby Letters Patent, 1s-

1. In a coal-hoist, the combinatiomwith the hoisting-frame, of the cagesupported thereon and pivotally connected therewith to one side of aperpendicular line passing centrally through the said cage,substantially as and for the purpose described.

2. In a coal-hoist, the combination,with the hoisting-frame and the cagehaving the rail I, of the pawl engaging with the rail and looking thecage to the hoisting-frame, and the trip-bar for engaging with the saidpawl to release it from the rail, substantially as described, for thepurpose specified.

3. The combination, with the hoisting-frame and thetilting cage, of thekeeper T, the

curved guide for tipping the cage when released, substantially as setforth.

5. The combination, with the cage, of the:

locking-levers M and the foot-levers 0, substantially as and for thepurpose described.

6. The combination, with the tilting cage and the car having thestop-bar N, of the locking-levers M and the foot-levers O, substamtially as described.

In testimony whereof I affix my signature in presence of two witnesses.

JACOB OLSON. Witnesses:

W. R. LACEY, S. J. HEGGASON.

